#include<stdio.h>
#include<stdlib.h>
int main()
{
    int i,j;
    i=1;
    while(i<=10)
    {
        j=1;
        while(j<=i)
        {
            printf("OK ");
            j=j+1;
        }
        i=i+1;
    }
    system("pause");
    return 0;
}
